Chapter 26 Notes - Today =ch26, wed=ch27, TS 363 open upon...

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Today =ch26, wed=ch27, TS 363 open upon request Google—images and type to search spirogyra Plant Kingdom Seedless Plants Table on page 424 Plants (Kingdom Plantae) probably descended from a group of green algae ; Charophytes o Both have similar biochemical characteristics . . . Same photosynthetic pigments and accessory pigments Chlorophylls a and b Xanthophylls and carotenes Same cell wall components (cellulose) Same storage of excess carbohydrate material (as starch) Some similarities in cell division 3 main groups of plants: nonvascular bryophytes, seedless vascular, seeds vascular Environmental challenges of living on “dry” land required evolution of adaptations Important adaptations: o Cuticle (= a waxy coating) on aerial parts to prevent water loss o Multicellular gametangia and embryos Algae are single celled; gametes are released o Stomata regulate water loss and gas exchange for photosynthesis Are pores in the plant (2 guard cells on either side of the stoma)
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This note was uploaded on 05/11/2008 for the course BIO 106 taught by Professor Sorenson during the Spring '07 term at Minnesota State University, Mankato.

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Chapter 26 Notes - Today =ch26, wed=ch27, TS 363 open upon...

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